Departing Anthropic engineer says quiet part out loud: Tech bros building super-AI that ‘could kill us all’ “I spent the last three years doing pretraining research at both OpenAI and Anthropic. Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives,” AI researcher Jacob Coxon tweeted. “The people building AI earnestly believe it could kill us all by the end of the decade